e4b6adc88e
This cleans up some of the package API's used for interacting with volumes, and simplifies management. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
89 lines
1.8 KiB
Go
89 lines
1.8 KiB
Go
package service // import "github.com/docker/docker/volume/service"
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import (
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/volume"
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)
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// By is an interface which is used to implement filtering on volumes.
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type By interface {
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isBy()
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}
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// ByDriver is `By` that filters based on the driver names that are passed in
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func ByDriver(drivers ...string) By {
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return byDriver(drivers)
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}
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type byDriver []string
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func (byDriver) isBy() {}
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// ByReferenced is a `By` that filters based on if the volume has references
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type ByReferenced bool
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func (ByReferenced) isBy() {}
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// And creates a `By` combining all the passed in bys using AND logic.
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func And(bys ...By) By {
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and := make(andCombinator, 0, len(bys))
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for _, by := range bys {
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and = append(and, by)
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}
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return and
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}
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type andCombinator []By
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func (andCombinator) isBy() {}
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// Or creates a `By` combining all the passed in bys using OR logic.
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func Or(bys ...By) By {
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or := make(orCombinator, 0, len(bys))
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for _, by := range bys {
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or = append(or, by)
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}
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return or
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}
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type orCombinator []By
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func (orCombinator) isBy() {}
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// CustomFilter is a `By` that is used by callers to provide custom filtering
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// logic.
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type CustomFilter filterFunc
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func (CustomFilter) isBy() {}
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// FromList returns a By which sets the initial list of volumes to use
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func FromList(ls *[]volume.Volume, by By) By {
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return &fromList{by: by, ls: ls}
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}
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type fromList struct {
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by By
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ls *[]volume.Volume
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}
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func (fromList) isBy() {}
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func byLabelFilter(filter filters.Args) By {
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return CustomFilter(func(v volume.Volume) bool {
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dv, ok := v.(volume.DetailedVolume)
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if !ok {
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return false
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}
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labels := dv.Labels()
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if !filter.MatchKVList("label", labels) {
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return false
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}
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if filter.Contains("label!") {
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if filter.MatchKVList("label!", labels) {
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return false
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}
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}
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return true
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})
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}
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